{"nct_id":"NCT00500357","title":"Study Evaluating a 13-valent Pneumococcal Conjugate Vaccine in Elderly Subjects","status":"COMPLETED","status_verified_date":"2011-04","start_date":"2007-11","start_date_type":null,"primary_completion_date":"2010-01","primary_completion_date_type":"ACTUAL","completion_date":"2010-01","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}